Jump to content
SAU Community

Tuning An Pfc For My R34 Gtt

JustinP

By JustinP,
in Engines & Forced Induction

 Share

Recommended Posts

JustinP Mentor

JustinP

Posted
Posted

Well I have had the PFC in for a couple of weeks now and am about to decide on where to get it tuned (I'm in WA). I have narrowed down the tuner to either Top Racing (it's close to where I live and it's a small tuning place which I guess might mean I will get a more personalised service from?) or X-Speed (which is a big tuning place that might have better facilities, but might be be a more get you in and get you out experience?).

What do people think I should go for?

Also I am only aiming for around 200rwkw at the moment (I have turbo back exhaust, EBC which will be running 11psi etc...) - obvioulsy my injectors are getting to 100% duty cycle and I should not need much more at around that power level, but would it be wise to upgrade my fuel pump or get an adjustable fuel regulator before the tune for safety? Would the adjustable fuel regulator allow me to squeeze a tiny bit more performance out of this setup? I don't care about the cost of the items but would it cost much to get either of these installed by a mechanic, ie is it a major job?

Any help is GREATLY appreciated :D

Link to comment
https://www.sau.com.au/forums/topic/160213-tuning-an-pfc-for-my-r34-gtt/
Share on other sites
Guilt-Toy Grand Master

Guilt-Toy

Posted
Posted (edited)

I just road tuned a mates r33 gtst after he just got his new PFC last weekend and it goes really well.. i am estimating around 195rwkw or so on 13psi which spikes to 14psi when its really cold.

the mods are

Front mount

Full turbo back exhaust

K&N panel filter

Apexi POWER FC

and some duel stage boost controller

stock injectors

stock fuel pump

I dont think it would have less then 195rwkw it goes great - should put it on the dyno soon to check i suppose

ohhh forgot to mention it gets up to 90% injector duty with stock injectors and stock pump.

Edited by Guilt-Toy
JustinP Mentor

JustinP

Posted
  • Author
Posted
I just road tuned a mates r33 gtst after he just got his new PFC last weekend and it goes really well.. i am estimating around 195rwkw or so on 13psi which spikes to 14psi when its really cold.

the mods are

Front mount

Full turbo back exhaust

K&N panel filter

Apexi POWER FC

and some duel stage boost controller

stock injectors

stock fuel pump

I dont think it would have less then 195rwkw it goes great - should put it on the dyno soon to check i suppose

ohhh forgot to mention it gets up to 90% injector duty with stock injectors and stock pump.

So I guess I shouldn't need to worry about getting an adjustable fuel reg... It's just that I have already been seeing the injectors at 100% duty cycle on the PFC hand controller. Maybe this is just because it has not been properly tuned yet to make the most of the fuel being squited into the engine?

Guilt-Toy Grand Master

Guilt-Toy

Posted
Posted (edited)

exactly. when i was doing this one - the stock maps was taking the tune down to 10 af ratios which is very very rich map standard so they will take fuel out of it and it will bring the mixture right which will also make more power.

So yeah the stock pfc map is set really trich - you need to get it cleaned up.

how big are the 34 gtt injectors? if they are the same as the r33 then 200rkw should be fine.

So I guess I shouldn't need to worry about getting an adjustable fuel reg... It's just that I have already been seeing the injectors at 100% duty cycle on the PFC hand controller. Maybe this is just because it has not been properly tuned yet to make the most of the fuel being squited into the engine?
Edited by Guilt-Toy
G_Force Community Regular

G_Force

Posted
Posted
Cool...

So those with knowledge of WA tuners - should I go with Top Racing in Carlisle, or X-Speed??? :glare:

Between the 2 i'd go with X-Speed, get Ant there to tune it, speak to anyone in WA who's into performance tuning n Ant will be mentioned sumwhere. How much did either place quote u for the tune?

Expect round 195rwkw, dont be afraid to lean it out to extract more power & economy but watch the knocks. Noticed ur in Vic Pk, wonder if ive seen u round...

JustinP Mentor

JustinP

Posted
  • Author
Posted
Between the 2 i'd go with X-Speed, get Ant there to tune it, speak to anyone in WA who's into performance tuning n Ant will be mentioned sumwhere. How much did either place quote u for the tune?

Expect round 195rwkw, dont be afraid to lean it out to extract more power & economy but watch the knocks. Noticed ur in Vic Pk, wonder if ive seen u round...

Yep you probably have seen me around Vic Park - it's a silver 4 door R34 :)

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • jez NF
      The Evolution Of "night Fury"

      By jez NF · Posted

      Waaay ahead of ya....(evil laugh!!) Will show the fitment and spec details later when it isnt as rainy !
    • wizlb
      Flex Fuel Kit Workshop

      By wizlb · Posted

      Thanks Dose.....    I appreciate it!!
    • Dose Pipe Sutututu
      Dose's Sometimes DIY and Pay Someone Home & Boat Improvement Thread

      By Dose Pipe Sutututu · Posted

      I'll probably be putting the shit box back on the dyno again soon, I want to dial in the closed loop boost control properly. I'll have a camera facing the car/motor for fun too. Just note, there are essentially 3x 10AN inlets going into the catch can and 1x going back to the intake pipe. Most of the time the catch can "return" to the sump actually is the crank case breather, pushing air out.
    • Piggaz
      Ogura orc1000f vs Osg tr2cd vs Osg r3c experiences, max torque/max hp?

      By Piggaz · Posted

      I have the R3C with a Nismo slave and by no means does it behave like a stocker, it ain’t THAT bad. On take off just give a bit more throttle than you would say a coppermix and it’s fine. It will not slip though.   
    • uchoa
      Yet another RB Neo misfiring thread after reading all the others.

      By uchoa · Posted

      Okay. Final round of testing done. Got a friend to hook up a fancy scanner to the car and we also ran some compression and leakdown tests, she is healthy.  The MAF was definitely the culprit. So for future reference anyone with similar issues that find this thread. I suggest the following steps, in order of affordability:   Check your spark plugs for any fouling, replace plugs if they are bad or re adjust the gaps making it narrower (0.8mm would be good). Check every coil's resistance with a multimeter. It can be done by probing the IB and G pins on the coil pack. Resistance should be around 1.4 (+/- 0.1) Ohms Check the MAF. If you have Nissan connect or a good scanner with the 14 adapter it should allow you to see the voltage on the MAF reading should be around 1.1 - 1.2V when car is idling. But if you don't, buy a new MAF from Amazon and test, then return it. (For instance, I got a Chinese one for $40 that was reporting 1.3v on idle). If you still have scanner, you can run tests on the injectors to see if they are working, just remember to unplug the fuel pump fuse/relay and have no pressure on the line. Then listen for the noises that the injectors make. Clean/replace injectors as needed. Once you find the issue and fix, order thousands of dollars worth of OEM parts to refresh unrelated things (Optional)   PS: Thanks to the absolute legends of this forum for the responses and help to someone that went a bit over their head. (me)
×
×
  • Create New...